Screen for windows and doors.



No. 871,843. PATENTED Nov; 26, 1907.

J. G. WIBSBN.

SCREEN FOR WINDOWS AND DOORS. APPLICATION FILED DE0.3,1906.

WITNESSES IN VENTOR- WWW ATTORNEYS JOHN G. WIESEN, OF MILWAUKEE,WISCONSIN.

SCREEN FOR WINDOWS AND DOORS.

Specification of Letters Patent.

Patented Nov. 26, 1907.

Application filed December 3, 1906. Serial 110.34 .6024.

To all whom it may concern:

Be it known that I, JOHN G. Wmsnn, a citizen of the United States,residing at Milwaukee, county of Milwaukee, and State of iVisconsin,have invented new and useful Improvements in Screens for Windowsandlighted are free to escape therefrom as they instinctively attempt todo when the interior of a building 1s darkened.

The construction of my invention is explained by reference to theaccompanying drawings in which Figure 1 is a front view of my screen,and Fig. 2 is a longitudinal section drawn on line XX of Fig. 1.

Like parts are identified by the same reference letters in both views.

A represents the frame of the screen which is of the ordinaryconstruction.

B represents the main screen which is preferably secured to the exteriorsurface of the frame and extends from the bottom bar (3 upward to withina short distance of the top bar D leaving a short unscreened space Eacross the upper end of the frame. The in ner surface of the frame isprovided with a narrow strip of screen F which is attached at its upperedge to the upper bar D and extends downwardly past the upper edge ofthe front screen B and is secured to the lower side of the frame G whichis preferably formed of tin or other sheet metal. From thence the screenextends upwardly along the surface of the metal frame G to a point nearthe upper edge of the front screen B terminating at a short distancetherefrom, whereby an open space H is left between the upper edges ofthe front screen B and the angular screen K.

The metallic frame G is provided at its respective ends with supportinglugs I by which it is secured with tacks or nails to the sides J of theframe, while the upper edge of the metallic frame G is provided with aplurality of angular projections IJ which extend across the opening IIand engage the upper edge of the front screen B. Thus the metal lieframe G serves as a support for the lower edges of the screen F and K aswell as for the upper edges of said screen K and B, while open spacesare left between the angular projections L for the escape of flies orother insects from the interior to the exterior.

Experience has prox en that flies and similar insects when seeking thelight from the interior of a room are inclined to move upwardly alongthe inner surface of the screen and in so doing upon screens of theconstruc tion shown they are free to pass out between the upper edges ofthe screen B and K.

Experience has also proven that such insects are not inclined to passover the edge of a screen and downwardly through a small aperture asthey would be compelled to do'to enter a room through the space betweenthe upper edges of the screens B and K.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is,

In a device of the described class the combination of a suitable framepreferably of wood, a metallic frame secured at its respective ends tothe opposing vertical sides of said first named frame and at an angle tothe front and rear surfaces of said frame, a screen secured in closecontact with one surface of said first named frame and extending fromthe lower bar thereof to a point below the upper bar, a second screensecured to the opposite side of said first named frame and extendingfrom the upper bar of the first named frame to the lower edge of saidmetallic frame and a third screen extending from the lower edge of saidmetallic frame upwardly along the surface of and secured at its upperedge to the upper edge of said metallic frame and means for securingsaid metallic frame and screens at intervals to said first named screen,all substantially as and for the purpose specified.

In testimony whereof I affix my signature in the presence of twowitnesses.

JOHN G. WIESEN.

Witnesses JAS. B. ERWIN, O. R. ERWIN.

